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The ring sign: a new ultrasound sign of peripheral nerve tumours
1Department of Clinical Radiology, Royal Infirmary, Edinburgh, UK.
Clinical Radiology
|December 2, 1998
Abstract:
The ultrasound ring sign is reported in two patients with benign nerve tumours. The echogenic ring lies within the mass rather than at its periphery. This appearance has not been described previously in nerve tumours.
